##########################################################################
# $Id: proftpd-messages,v 1.20 2005/12/30 18:40:30 bjorn Exp $
##########################################################################
# $Log: proftpd-messages,v $
# Revision 1.20  2005/12/30 18:40:30  bjorn
# Filtering "masquerading" statements, and corrected bug submission string,
# per B Wooster.
#
# Revision 1.19  2005/02/24 17:08:05  kirk
# Applying consolidated patches from Mike Tremaine
#
# Revision 1.6  2005/02/13 22:50:46  mgt
# patches from Pawel -mgt
#
# Revision 1.5  2005/02/13 20:28:42  mgt
# More init corrections -mgt
#
# Revision 1.4  2004/07/29 19:33:29  mgt
# Chmod and removed perl call -mgt
#
# Revision 1.3  2004/07/10 01:54:35  mgt
# sync with kirk -mgt
#
# Revision 1.16  2004/02/03 02:45:26  kirk
# Tons of patches, and new 'oidentd' and 'shaperd' filters from
# Pawe? Go?aszewski" <blues@ds.pg.gda.pl>
#
########################################################
# This was written by Simon Liddington for use with Logwatch
#
# Please send all comments, suggestions, bug reports,
#    etc, to logwatch-devel@logwatch.org
########################################################


$Detail = $ENV{'LOGWATCH_DETAIL_LEVEL'} || 0;
$IgnoreUnmatched = $ENV{'ftpd_ignore_unmatched'};

$NoEndpoints = 0;

while (defined($ThisLine = <STDIN>)) {
   if (
         ( $ThisLine =~ /^FTP session closed./ ) or
         ( $ThisLine =~ /^(ANONYMOUS )?FTP login as \'.*\' from [^ ]+ \[.*\] to .*/ ) or
         ( $ThisLine =~ /PAM\(.*\): Authentication failure/ ) or
         ( $ThisLine =~ /^data_sendfile/ ) or
         ( $ThisLine =~ / - FTP session opened/ ) or
         ( $ThisLine =~ / - FTP session closed/ ) or
         ( $ThisLine =~ / - No certificate files found/ ) or
         ( $ThisLine =~ /FTP (no transfer|session idle) timeout, disconnected/ ) or
         ( $ThisLine =~ / masquerading as / ) or
         ( $ThisLine =~ /FTP login timed out, disconnected/ )
      ) {
         #We don't care about these
   } elsif ( ($Host,$IP,$Email,) = ( $ThisLine =~ /^FTP session opened: ftp\/ftp (.*)\[(.*)\] (.*)$/ ) ) {
      $Temp = "   " . $Host . " (" . $IP . "): " . $Email . " - ";
      $AnonLogins{$Temp}++;
   } elsif ( ($Host, $IP) = ( $ThisLine =~ /\((.*)\[(.*)\]\) - ANON .+: Login successful\./ ) ) {
      $Temp = "   " . $Host . " (" . $IP . ")";
      $AnonLogins{$Temp}++;
   } elsif ( ($User,$Host,$IP) = ( $ThisLine =~ /^FTP session opened: (.*\/.*) (.*)\[(.*)\] (.*)$/ ) ) {
      $Temp = "   $Host : $User - ";
      $UserLogins{$Temp}++;
   } elsif ( ($Host,$IP,$User) = ( $ThisLine =~ /\((.*)\[(.*)\]\) - USER (.+): Login successful/ ) ) {
      $Temp = "   " . $Host . ": " . $User . " - ";
      $UserLogins{$Temp}++;
   } elsif ( ($User) = ( $ThisLine =~ /^failed login, can\'t find user \'(.*)\' $/ ) ) {
      $Temp = "   " . "Unknown" . " (" . "Unknown.IP" . "): " . $User . " - ";
      $BadUsers{$Temp}++;
   } elsif ( ($User,$Host,$IP) = ( $ThisLine =~ /USER (.*): no such user found from (.*) \[(.*)\] to/ ) ) {
      $Temp = "   $Host : $User - ";
      $BadUsers{$Temp}++;
   } elsif ( ($Host,$Ip,$User) = ( $ThisLine =~ /\((.*)\[(.*)\]\) - no such user '(.*)'.$/ ) ) {
      #$Temp = "$Host($Ip)";
      $BadUsers{$User}{$Host}++;
   } elsif ( ($Host,$User) = ( $ThisLine =~ /\[(.*)\]\) - USER (.*) \(Login failed\): Incorrect password/ ) ) {
      $Temp = "   $Host : $User - ";
      $BadPasswds{$Temp}++;
   } elsif ( ($Host,$User) = ( $ThisLine =~ /\[(.*)\]\) - USER (.*) \(Login failed\): Invalid shell/ ) ) {
      $Temp = "   $Host : $User - ";
      $BadShell{$Temp}++;
   } elsif ( ($Host,$Ip) = ( $ThisLine =~ /\((.*)\[(.*)\]\) - SECURITY VIOLATION: root login attempted./ ) ) {
      $RootLoginAttempt{$Host}++;
   } elsif ( ($Host) = ( $ThisLine =~ /\(((.*)\[(.*)\])\) - Maximum login attempts exceeded./ ) ) {
      $MaxLoginAttempts{$Host}++;
   } elsif ( ($Host,$Reason) = ( $ThisLine =~ /\[(.*)\]\) - Refused PORT [\d,]+ \((.*)\)/ ) ) {
      $Temp = "   " . $Host . ": " . $Reason . " - ";
      $RefusedPorts{$Temp}++;
   } elsif ( ($Host,$Reason) = ( $ThisLine =~ /\(((.*)\[(.*)\])\) - Connection refused \((.*)\)./ ) ) {
      $ConnectionRefused{$Reason}{$Host}++;
   } elsif ( ($Host) = ( $ThisLine =~ /\(((.*)\[(.*)\])\) - Data transfer stall timeout/ ) ) {
      $TransferTimeout{$Host}++;
   } elsif ( $ThisLine =~ m/[^ ]* - Fatal: Transport endpoint is not connected/ ) {
      $NoEndpoints++;
   } elsif ( ($Option) = ( $ThisLine =~ /warning: (.*) is deprecated/ ) ) {
      $DeprecatedOptions{$Option}++;
   } else {
      # Report any unmatched entries...
      push @OtherList,$ThisLine;
   }
}

##############################################

if (keys %DeprecatedOptions) {
   print "\nDeprecated options in config:\n";
   foreach $Option (sort {$a cmp $b} keys %DeprecatedOptions) {
      print "   $Option\n";
   }
}

if ( (keys %AnonLogins) and ($Detail >= 5) ) {
   print "\nAnonymous FTP Logins:\n";
   foreach $ThisOne (sort {$a cmp $b} keys %AnonLogins) {
      print $ThisOne . $AnonLogins{$ThisOne} . " Time(s)\n";
   }
}

if ( (keys %DeletedFiles) and ($Detail >= 10) ) {
   print "\nFiles deleted through FTP:\n";
   foreach $ThisOne (sort {$a cmp $b} keys %DeletedFiles) {
      print $ThisOne;
      print @{$DeletedFiles{$ThisOne}};
   }
}

if (keys %UserLogins) {
   print "\nUser FTP Logins:\n";
   foreach $ThisOne (sort {$a cmp $b} keys %UserLogins) {
      print $ThisOne . $UserLogins{$ThisOne} . " Time(s)\n";
   }
}

if (keys %RootLoginAttempt) {
   print "\nSECURITY VIOLATION!!!!\n";
   print "Root login attempt from:\n";
   foreach $Host (sort {$a cmp $b} keys %RootLoginAttempt) {
      print "  $Host : $RootLoginAttempt{$Host} Time(s)\n";
   }
}

if (keys %MaxLoginAttempts) {
   print "\nMaximum login attempts exceeded from hosts:\n";
   foreach $Host (sort {$a cmp $b} keys %MaxLoginAttempts) {
      print "  $Host : $MaxLoginAttempts{$Host} Time(s)\n";
   }
}

if (keys %ConnectionRefused) {
   print "\nConnection refused with reason:\n";
   foreach $Reason (sort {$a cmp $b} keys %ConnectionRefused) {
      print "  $Reason :\n";
      foreach $Host (sort {$a cmp $b} keys %{$ConnectionRefused{$Reason}}) {
         print "      $Host : $ConnectionRefused{$Reason}{$Host} Time(s)\n";
      }
   }
}

if ( ( (keys %BadUsers) or (keys %BadPasswds) ) and ($Detail >= 5) ) {
   print "\nFailed FTP Logins:\n";
   if ( (keys %BadUsers) and ($Detail >= 5) ) {
      print "\n  Invalid Username:\n";
      foreach $User (sort {$a cmp $b} keys %BadUsers) {
         print "    $User:\n";
         foreach $Host (sort {$a cmp $b} keys %{$BadUsers{$User}}) {
            print "      $Host : $BadUsers{$User}{$Host} Time(s)\n";
         }
      }
   }
   
   if ( (keys %BadPasswds) and ($Detail >= 5) ) {
      print "\n  Incorrect Password:\n";
      foreach $ThisOne (sort {$a cmp $b} keys %BadPasswds) {
         print $ThisOne . $BadPasswds{$ThisOne} . " Time(s)\n";
      }
   }
   
   if ( (keys %BadPasswds) and ($Detail >= 5) ) {
      print "\n  Invalid Shell:\n";
      foreach $ThisOne (sort {$a cmp $b} keys %BadShell) {
         print $ThisOne . $BadShell{$ThisOne} . " Time(s)\n";
      }
   }
}

if ( (keys %RefusedPorts) and ($Detail >= 5) ) {
   print "\nRefused PORTs:\n";
   foreach $ThisOne (sort {$a cmp $b} keys %RefusedPorts) {
      print $ThisOne . $RefusedPorts{$ThisOne} . " Time(s)\n";
   }
}

if ( (keys %TransferTimeout) and ($Detail >= 5) ) {
   print "\nData transfer stall timeout:\n";
   foreach $Host (sort {$a cmp $b} keys %TransferTimeout) {
      print "   $Host : $TransferTimeout{$Host} Time(s)\n";
   }
}

if ($NoEndpoints > 0) {
   print "\nTransport endpoint is not connected error $NoEndpoints Time(s)\n";
}

if (($#OtherList >= 0) and (not $IgnoreUnmatched)) {
   print "\n**Unmatched Entries**\n";
   print @OtherList;
}

exit(0);

# vi: shiftwidth=3 tabstop=3 syntax=perl et